Trained in first aid, Mr Desborough went to the wrecked carriage and saw people in terrible pain.

At first, he tried to comfort fatally wounded Richard Ellery, by stroking his back, even though he could not get into the carriage himself.

When he was finally able to climb into the carriage, he found a young woman whom he described as being "bent around a pole".

She was very badly injured and he tried to comfort her too, cradling her head while trying to assist her breathing.

The young woman was Carrie Taylor who later died. Speaking afterwards about Mr Desborough's evidence, Carrie's father, John Taylor, said: "This was the first opportunity to meet him face to face. It was quite emotional for us. Knowing what he did for Carrie gives us some comfort."

Also at the scene was Gerardine Quaghebeur, a doctor who had been travelling on the train. She recalled her frustration during the aftermath as she waited for paramedics to arrive - but she also believed that the care given once people were evacuated was impeccable.

He said firefighters had been held back by bosses who were worried about secondary bombs.

"If there had have been a second device, why leave 500 people just sitting there to take the full brunt of that?" he told the inquests.

Gratitude

Off-duty Pc Elizabeth Kenworthy joined the rescue from a different part of the train.

She stopped two passengers from bleeding to death - Andrew Brown and Martine Wright. The police officer insisted, as reported in the Daily Telegraph, that she had been capable of nothing more than rudimentary first aid.

Ms Wright said that she could not sum up the depth of her gratitude to Pc Kenworthy, later made an MBE.

"I wouldn't be here, if it were not for her. People like her don't come around a lot," she said.

Bruce Lait, a professional dancer, was on the train with his dance partner, Crystal Main.

Radio failed

Another passenger Colin Pettet helped those around him, including investment banker Philip Duckworth. He was standing so close to the device that he was blinded in one eye by a fragment of bone from the bomber's body.

One of the most important stories from Aldgate came from the driver, Timothy Batkin. He recalled the cries of passengers - but his cab radio had failed in the blast. Luckily, the train was in a near-surface tunnel and he used his mobile to raise the alarm.

But Olanayi Falayi, the station supervisor for Aldgate Station, ignored those orders and ploughed on with the rescue.

David Parnell and Steve Jones were the first paramedics on the scene. They took no medical equipment so they could concentrate on assessing the situation.

Their radios did not work underground and they had to return to the surface to call for more help.

Mr Parnell told the inquest, as reported in the Independent, that time may have been wasted. Mr Jones was carrying special cards used to triage, or prioritise, patients in a massive catastrophe. But he had assumed fully-equipped colleagues would be following close behind him - but they weren't.

Paul Rigby, a divisional officer with the London Fire Brigade, said in his evidence that the sheer volume of people leaving the station hampered the rescue efforts.

He confirmed that there had been delays in dispatching teams to the bombed carriage because firefighters did not know whether the rail was still electrified.

"I can't deal or officers can't deal in supposition," he said. "Imagine the horror: these people have just been through the worst thing possibly they've ever been through in their life. Then to see their rescuers electrocuted as they tried to reach them."

Stephen Smith, then a senior divisional officer in the London Fire Brigade, and since promoted to Deputy Assistant Commander, made notes in the aftermath.

Those notes, now on the inquest's website here and here reveal that he thought that training had gone "out the window".

John Taylor, father of Carrie, sat through the first month of evidence.

"We were told that we had the best resilience planning in the world for something like this," he said. "If this was the best resilience plan, I would not want to see the second best."

And Clifford Tibber, one of the solicitors representing families at the inquests, said in an article on his firm's website that the evidence heard in the first weeks had engaged more emotions than in his 26 years of practising law. He said that anyone who doubted the purpose of the inquests should "take a moment to attend and it will all become clear".

The inquests continue for the coming weeks with evidence from the second bomb scene, Edgware Road.